who was born (as he
reports) of black parents, both father and mother, at Kingston in Jamaica,
who has many large white blotches on the skin of his limbs and body; which
I thought felt not so soft to the finger, as the black parts. He has a
white divergent blaze from the summit of his nose to the vertex of his
head; the upper part of which, where it extends on the hairy scalp, has
thick curled hair, like the other part of his head, but quite white. By
these marks I supposed him to be the same black, who is described, when
only two years old, in the Transactions of the American Philosophical
Society, Vol. II. page 292, where a female one is likewise described with
nearly similar marks.

The joining of the frontal bones, and the bregma, having been later than
that of the other sutures of the cranium, probably gave cause to the
whiteness of the hair on these parts by delaying or impeding its growth.

ADDITION II.

The following extract from a letter of Dr. Beddoes on hydrocephalus
internus, I esteem a valuable addition to the article on that subject at
Class I. 2. 3. 12.

"Master L----, aged 9 years, became suddenly ill in the night about a
week before I saw him. On the day before the attack, he had taken
opening medicines, and had bathed afterwards. He had complained of
violently acute pain in his head, shrieked frequently, ground his teeth
hard, could not bear to have his head raised from the pillow, and was
torpid or deaf. His tongue was white, pulse 110 in the evening and
full. As yet the pupil of the eye was irritable, and he had no
strabismus. He had been bled with leeches about the head, and
blistered. I directed mercurial inunction, and calomel from 3 to 6
grains to be taken at first every six, and afterwards every three
hours. This plan produced no sensible effect, and the patient died on
the 18th day after the seizure. He had convulsion fits two days
preceding his death, and the well-known symptoms of hydrocephalus
internus all made their appearance. From what I had seen and read of
this disease, I believed it to belong to inflammations, and at an
earlier period I should be tempted to bleed as largely as for
pneumonia. The fluid found after death in the ventricules of the brain
I impute to debility of the absorbents induced by inflammation. My
reasons are briefly these; 1. The acuteness of the pain. 2. The state
of the pulse. In